Stream and catchment delineation with GIS (theory)

This video show how to derive streams and catchments from a DEM using geographic information systems (GIS). The whole workflow will be presented, which includes, DEM aquisition, mosaic, reprojection, void filling, filling of sinks, Strahler order, D8 flow direction and much more.

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[winkdong]

Been attracted to the Contour line + Catchment representation, and didn’t expect such a informative explanation!

[masoodrasoli]

A great video for learning the basics.

[gezahagnnegash]

Thanks a lot for your nice explanation and presentation

[akindipeoluwadamilare]

Thank you for this, it was clear and concise.

[dayansaynespuma]

Muchas gracias por la explicación. Muy didáctico.

[gemmam]

Hi Hans! In the 'fill sinks' step, you say real sinks (e.g. lakes) need to be added after pit removal. How can this be done? I have polygon layer of lakes if that is of use?

[angelos.]

Great video. Thanks for sharing!
You said that it does not work for flat area and human controlled environments, do you have a workflow for such a case?
Thanks A.

[alraschidadam]

Hi I was stucked at Upslope Area and it says Error: tool needs graphical user interface [Upslope Area]. I already changed the added "|4" in ta_hydrology_upslope_area and it does not work still.

[mahmoudezzat]

I'm an Agricultural Engineer from egypt, and I'm excited with GIS technology. My next step will be master degree (GIS in RWH). Can you please support me with some idea to start with Professor. ☺️

[pasqualepaldino]

Could i make last question? How can i set my qgis with sr wgs 84 etrs89 utm zone 33, i make u this question becouse in my sr i do Not have etrs but i have just epgs? By tue way thanks for your video i am learning very much